EP 1425881 A2 20040609 - METROPOLITAN AREA LOCAL ACCESS SERVICE SYSTEM
Title (en)
METROPOLITAN AREA LOCAL ACCESS SERVICE SYSTEM
Title (de)
METROPOLITAN-NETZ ZUM DIENSTLOKALZUGRIFF-SYSTEM
Title (fr)
SYSTEME METROPOLITAIN D'ACCES LOCAL AUX SERVICES
Publication
Application
Priority
- US 0228457 W 20020906
- US 95228401 A 20010912
Abstract (en)
[origin: WO03024029A2] A local access fiber optical distribution network is disclosed in which a dedicated pair of diversely routed optical fibers is routed in the distribution network for each customer. In a preferred embodiment, a dual physical overlay ring core topology is used in the core. The distribution network includes working and protection logical path connectivity. No 802.1D Spanning Tree is required for recovery, providing resilience to any single network failure in any device or link, quick recovery times from failure, and a failure detection/recovery protocol that is not active on any devices other than the devices directly attached to the subscriber.
IPC 1-7
IPC 8 full level
H04L 12/28 (2006.01); H04L 12/46 (2006.01); H04L 12/56 (2006.01); H04L 29/14 (2006.01); H04L 69/40 (2022.01); H04Q 11/00 (2006.01)
CPC (source: EP US)
H04L 12/2852 (2013.01 - EP US); H04L 12/4637 (2013.01 - EP US); H04L 49/357 (2013.01 - EP US); H04L 69/40 (2013.01 - EP US); H04L 49/351 (2013.01 - EP US); H04L 49/354 (2013.01 - EP US); H04L 49/602 (2013.01 - EP US); H04Q 11/0067 (2013.01 - EP US); H04Q 11/0071 (2013.01 - EP US); H04Q 2011/0073 (2013.01 - EP US); H04Q 2011/0081 (2013.01 - EP US)
Citation (search report)
See references of WO 03024029A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
WO 03024029 A2 20030320; WO 03024029 A3 20030731; EP 1425881 A2 20040609; US 2003048501 A1 20030313; US 2003048746 A1 20030313; US 2005180339 A1 20050818; US 8031589 B2 20111004
DOCDB simple family (application)
US 0228457 W 20020906; EP 02768815 A 20020906; US 8793805 A 20050323; US 95228401 A 20010912; US 97547401 A 20011011